OpenAI Build Week

OpenAI Build Week Challenge

GPT-5.6 is here, and Codex—the same powerful coding agent—is now available in ChatGPT.OpenAI Build Week is a chance to explore what's possible with GPT-5.6 and Codex. Experiment with new ideas, connect with other builders, and submit a project for a chance to win prizes and recognition.

Submissions are due Tuesday, July 21 at 5:00 PM PT.

How to participate

1. Read the Official Rules. Review the challenge requirements, eligibility, and submission guidelines.

2. Install the Devpost Hackathons Plugin. Access the challenge details, rules, and submission flow directly from the ChatGPT desktop or mobile app.

3. Get set up with OpenAI. Sign up for an OpenAI account then request your free Codex credits on the Resources tab by Friday, July 17th at 12:00 PM PT.

4. Explore the docs. Learn about GPT-5.6 and Codex with the available quickstart before you begin.

5. Pick your track and build. Find the track that best fits your idea, then submit your project by Tuesday, July 21 at 5:00 PM PT.

Meet the Devpost plugin

The Devpost Hackathons plugin runs inside ChatGPT and includes everything you need to participate—from challenge requirements and rules to the submission flow. It can help you brainstorm ideas, plan your project, and prepare your submission without leaving Codex.